EP2041988A2 - Méthode de communication entre un premier téléphone sans fil et un deuxième téléphone sans fil - Google Patents

Méthode de communication entre un premier téléphone sans fil et un deuxième téléphone sans fil

Info

Publication number
EP2041988A2
EP2041988A2 EP07825888A EP07825888A EP2041988A2 EP 2041988 A2 EP2041988 A2 EP 2041988A2 EP 07825888 A EP07825888 A EP 07825888A EP 07825888 A EP07825888 A EP 07825888A EP 2041988 A2 EP2041988 A2 EP 2041988A2
Authority
EP
European Patent Office
Prior art keywords
wireless
predefined
wireless phone
signaling protocol
phone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07825888A
Other languages
German (de)
English (en)
Inventor
Leonardus Rek
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to EP07825888A priority Critical patent/EP2041988A2/fr
Publication of EP2041988A2 publication Critical patent/EP2041988A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • H04L61/4557—Directories for hybrid networks, e.g. including telephone numbers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/08—Upper layer protocols
    • H04W80/10—Upper layer protocols adapted for application session management, e.g. SIP [Session Initiation Protocol]

Definitions

  • the invention relates generally to a method of communicating between a first wireless phone and a second wireless phone.
  • the invention also relates to a wireless communication system comprising a first wireless phone and a second wireless phone.
  • SIP Session Initiation Protocol
  • a conventional communication using the SIP protocol is depicted in Figure 1. It comprises a first wireless videophone A and a second wireless videophone B.
  • an intermediary device For a wireless videophone to connect to the network NET, an intermediary device must be used which is connected on one side to the wireless videophone via a wireless connection (e.g. WiFi connection) and on the other side to the network via a suitable IP (stands for Internet Protocol) connection (e.g. ADSL, cable).
  • This intermediary device is often referred to as a wireless gateway, wireless modem, wireless modem/router, and will be referred to as a wireless base station BS A or BS B in the following.
  • SIP server SERV For one videophone A to call another videophone B, specific SIP management devices need to be present in the network that provides the connection between these two phones.
  • a basic implementation of such a network consists of a single SIP management device, referred to as a SIP server SERV in the following.
  • the main task of the SIP server is to detect requests for calls from the wireless videophones, and provide these videophones with the required information that allows a connection between two phones to be established.
  • One of the most important information required for establishing a SIP connection consists of the IP addresses and the SIP identifiers of both videophones.
  • the calling videophone knows the SIP identifier (e.g. a telephone number) of the called videophone, but not its IP address.
  • the SIP server delivers this IP address.
  • the invention takes the following aspect into consideration. Professionals in the telecommunication industry and sales staff in retail stores often have the need to demonstrate wireless phones without neither having access to a network with a suitable SIP-like server nor the possibility to put wireless base stations in place. In these cases it is not possible to make a call between these wireless phones.
  • a method of communicating between a first wireless phone and a second wireless phone each of said first and second wireless phones comprising a wireless transceiver for exchanging data using a signaling protocol
  • said method comprising the steps of: - initiating a direct communication between the two wireless phone via a first stimulus on the first wireless phone and a second stimulus on the second wireless phone, configuring the first wireless phone with a first predefined IP address and a first signaling protocol identifier, and the second wireless phone with a second predefined IP address and a second signaling protocol identifier, the first, respectively second, phone knowing the second, respectively first, IP address, the second, respectively first, signaling protocol identifier and a predefined wireless network identifier, establishing a direct communication between the two wireless phones using their wireless transceivers and the signaling protocol on the basis of the first and second predefined IP addresses, the first and second predefined signaling protocol identifiers and the predefined wireless network identifier.
  • the invention extends to a corresponding communication system comprising a first wireless phone and a second wireless phone able to exchange data using a signaling protocol.
  • the invention also relates to a wireless phone for use in such a communication system.
  • the communication method and system in accordance with the invention makes it possible to establish a direct communication between the first and second wireless phones, first thanks to an activation of the wireless phones which is initiated with two different stimuli on said phones.
  • the memory of the first (respectively second) wireless phone contains the required parameters of the second (respectively first) wireless phone, enabling said first (respectively second) wireless phone to retrieve a predefined IP address and a predefined signaling protocol (e.g. SIP) identifier of the second (respectively first) wireless phone and thus simulating the function of the signaling protocol server in reply to a request of the first (respectively second) wireless phone.
  • a predefined IP address e.g. SIP
  • the signaling protocol server and the network are not needed.
  • the first wireless phone and the second wireless phone are able to establish a direct wireless connection thanks to the use of the predefined wireless network identifier (in this case the wireless network will only have two client devices: the first and second wireless phones), and thus without requiring the use of a base station.
  • the wireless transceivers are WiFi transceivers.
  • the predefined wireless network identifier is a Service Set Identifier identifier.
  • the wireless transceivers are Bluetooth transceivers.
  • an additional connection parameter is contained in the memory of both wireless phones, namely a Personal Identification Number PIN code, this parameter being exchanged between the phones during an authentication process.
  • the signaling protocol may be the Session Initiation Protocol.
  • the wireless phone may be a videophone.
  • the step of initiating includes one of a long press on a specific key, a specific key press sequence, a specific simultaneous press on a combination of keys, a press on a dedicated key or switch, or a item in a menu that can be selected by navigating to this item.
  • Figure 1 is a schematic block diagram of a conventional wireless communication system using the SIP protocol
  • Figure 2 is a schematic block diagram of a wireless communication system in accordance with the invention.
  • FIG. 2 a schematic block diagram of a wireless communication system in accordance with the invention is depicted. It comprises a first wireless phone A and a second wireless phone B able to exchange data using a signaling protocol.
  • the invention will be described in the context of the SIP protocol but it will be apparent to a skilled person that the invention stays applicable to any other signaling protocol equivalent to the SIP protocol.
  • the first, respectively second, wireless phone comprises a transceiver (not represented) for establishing a direct communication with the second, respectively first, wireless phone using the signaling protocol on the basis of IP addresses, signaling protocol identifiers and a wireless network identifier.
  • the invention is described in the context of a wireless connection according to the standard IEEE 802.11, hereinafter referred to as WiFi, but it would be apparent to a skilled person that the invention is applicable to any other wireless connection such as Bluetooth for example.
  • the Bluetooth connection In order to make a Bluetooth connection, one of the wireless phones must enter an association mode and start looking for other Bluetooth phones. Once a wireless phone has found another wireless phone, the Bluetooth connection needs a two-way authentication (or pairing) based on a 4-digit PIN code, which can be predefined in both wireless phones.
  • Each of the wireless phones comprises a digital signal processor DSP (not represented) for performing audio and video coding and decoding according to known standard, such as G.711 or G.729 for audio codecs and H.263 or H.264 for video codecs, supported by the SIP protocol.
  • DSP digital signal processor
  • Each of the wireless phones also comprises means for initiating a direct communication between the first wireless phone and the second wireless phone and a memory containing specific parameters, as it will be described in more details hereinafter.
  • the wireless phone is preferably a videophone but can also be a conventional phone, namely without video functionality.
  • the wireless phones in accordance with the invention embeds a specific demonstration mode, also called a SIP video intercom mode, that makes it possible to establish calls using the standard SIP protocol between the two videophones without the need of a network, wireless base station or SIP server.
  • the demonstration mode comprises the following phases: the start of the demonstration mode, the configuration of the videophones, the connection of the videophones, - the establishment of a video call, the video call release, and the exit the demonstration mode.
  • the demonstration mode is started.
  • each videophone needs to receive an external stimulus that results in the initialization of the demonstration mode as this mode is not identical to the mode in which the videophone is connected to a wireless base station through which it is connected to a network in which a SIP server is present.
  • the most suitable but not exclusive manner for a videophone to receive this external stimulus is through the use of a keyboard that is typically present on such a product.
  • a few examples of manners to activate the demonstration mode are listed below: a long press on a specific key, a specific key press sequence, a specific simultaneous press on a combination of keys, a press on a dedicated key or switch, or - a item in a menu that can be selected by navigating to this item.
  • the videophones are configured.
  • the required conditions are: videophone A must have a valid IP address IP A (e.g. 192.168.1.10 in Figure 2), - videophone A must have a valid SIP identifier SIP A (name or number, often a telephone number, e.g. 123456 in Figure 2), videophone B must have a valid IP address IP B not identical to the address of videophone A (e.g. 192.168.1.11 in Figure 2), videophone B must have a valid SIP identifier SIP B not identical to the SIP identifier of videophone A (name or number, often a telephone number, e.g. 654321 in Figure
  • videophone A must know the IP address and the SIP identifier of videophone B
  • videophone B must know the IP address and the SIP identifier of videophone A
  • videophones A and B must use the same wireless network identifier SSID (for Service Set IDentifier, e.g. PHILIPS in Figure 2).
  • SSID for Service Set IDentifier, e.g. PHILIPS in Figure 2.
  • an external stimulus is required which is not identical for both videophones.
  • a few examples to obtain this result are listed below: a specific manner (e.g. *#31) to activate the demonstration mode for videophone A and another specific manner (e.g. *#32) to activate the demonstration mode for videophone B; a common manner to activate the demonstration mode for both videophones followed by a different stimulus for each videophone (for example, a selection of an item in a menu, a drop-down list to identify if the videophone must be configured as videophone A or videophone B).
  • a fixed and known IP address and a fixed and known SIP identifier are attributed to videophone A and another fixed and known IP address and another fixed and known SIP identifier are attributed to videophone B.
  • videophone A knows the IP address and SIP identifier of videophone B and visa versa. These addresses and SIP identifiers are pre-programmed in both videophones and are fixed and known.
  • Each videophone has a WiFi transceiver that could function in two different modes:
  • this mode is used when connected to a base station and allows several WiFi devices to connect to a single base station. In this mode the base station manages the wireless connection or connections
  • Ad- hoc mode (i.e. the demo mode in our case): this mode allows two WiFi devices to establish a direct wireless connection without the use of a wireless base station.
  • the WiFi transceivers of both videophones are set in the ad-hoc mode and are forced to use a common pre-programmed WiFi identifier SSID.
  • a third step the connection of the videophones is established.
  • the wireless transceivers of both videophones are able to establish a wireless connection, which allows the videophone to exchange SIP messages in order to establish and terminate a call.
  • a video call is established.
  • a call from videophone A to videophone B can be established by using the standard SIP message INVITE, for which the format of the relevant part of the total message is formatted in the following manner: INVITE sip: [SIP identifier of videophone B]@[IP address of videophone B]
  • Videophone B receives the INVITE message from videophone A and sends standard SIP messages to accept the call.
  • the manner in which the user interface of a videophone places or accepts a call can vary widely.
  • the user of videophone A may type the SIP identifier of videophone B on a keyboard and press an off- hook key to place the call.
  • the user of videophone B may press an off- hook key.
  • the user interface of videophone A may work in such a manner that simply pressing an off-hook key results in placing a call using the SIP identifier of videophone B.
  • the fifth step consists in the video call release.
  • the demonstration mode is a mode that is not identical to the normal mode in which the videophone functions when connected to a wireless base station and a network, it is recommendable to implement a manner to exit the demonstration mode and return to the normal mode.
  • An external stimulus is required to exit the demonstration mode and could be implemented in various manners: a long press on a specific key, a specific key press sequence, a specific simultaneous press on a combination of keys, a press on a dedicated key or switch, - a item in a menu that can be selected by navigating to this item, or by switching off the videophone.
  • This invention proposal makes it possible to establish video and voice calls using the standard SIP protocol without the need of a network, wireless base station or SIP server. In practice it enables a large-scale deployment of demonstrations in retail stores to support sales, and practical demonstration performed by professionals in the telecommunication industry. This demo mode can also be used at home for audio / video intercom mode.
  • the invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer.
  • a device claim enumerating several means several of these means may be embodied by one and the same item of hardware.
  • the mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Multimedia (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention porte sur une méthode de communication entre un premier téléphone sans fil (A) et un deuxième téléphone sans fil (B), comportant chacun un émetteur/récepteur sans fil d'échange de données à l'aide d'un protocole de signalisation. Ladite méthode comporte les étapes suivantes: lancement d'une communication directe entre les deux téléphones via un premier stimulus sur le premier et un deuxième stimulus sur le deuxième; configuration du premier téléphone avec une première adresse IP prédéfinie (IP_A) et un premier identificateur de protocole de signalisation (SIP_A), configuration du deuxième téléphone avec une deuxième adresse IP prédéfinie (IP_B) et un deuxième identificateur de protocole de signalisation (SIP_B), le premier téléphone connaissant l'adresse IP du deuxième et réciproquement, et le deuxième téléphone connaissant l'identificateur de protocole de signalisation du premier et réciproquement, et tous deux connaissant un identificateur prédéfini de réseau sans fil (SSID); établissement de la communication directe entre les deux téléphones au moyen: de leurs émetteurs/récepteurs et leurs protocoles de signalisation sur la base de leurs adresses IP prédéfinies respectives et de leurs et identificateurs de protocole de signalisation prédéfinis respectifs, et de l'identificateur prédéfini de réseau sans fil.
EP07825888A 2006-07-06 2007-07-05 Méthode de communication entre un premier téléphone sans fil et un deuxième téléphone sans fil Withdrawn EP2041988A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07825888A EP2041988A2 (fr) 2006-07-06 2007-07-05 Méthode de communication entre un premier téléphone sans fil et un deuxième téléphone sans fil

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP06300762 2006-07-06
EP07825888A EP2041988A2 (fr) 2006-07-06 2007-07-05 Méthode de communication entre un premier téléphone sans fil et un deuxième téléphone sans fil
PCT/IB2007/052629 WO2008004197A2 (fr) 2006-07-06 2007-07-05 Méthode de communication entre un premier téléphone sans fil et un deuxième téléphone sans fil

Publications (1)

Publication Number Publication Date
EP2041988A2 true EP2041988A2 (fr) 2009-04-01

Family

ID=38894971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07825888A Withdrawn EP2041988A2 (fr) 2006-07-06 2007-07-05 Méthode de communication entre un premier téléphone sans fil et un deuxième téléphone sans fil

Country Status (5)

Country Link
US (1) US8103215B2 (fr)
EP (1) EP2041988A2 (fr)
JP (1) JP5113166B2 (fr)
CN (1) CN101485177B (fr)
WO (1) WO2008004197A2 (fr)

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KR101332813B1 (ko) 2012-02-24 2013-11-27 주식회사 팬택 무선 통신 장치 및 무선 통신 장치의 무선 접속 채널의 형성 방법
CN108419226B (zh) * 2012-09-27 2020-12-25 华为终端有限公司 一种蓝牙设备之间连接的方法及蓝牙设备
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Also Published As

Publication number Publication date
WO2008004197A3 (fr) 2008-06-19
US20090239522A1 (en) 2009-09-24
WO2008004197A2 (fr) 2008-01-10
JP2009543418A (ja) 2009-12-03
US8103215B2 (en) 2012-01-24
CN101485177A (zh) 2009-07-15
JP5113166B2 (ja) 2013-01-09
CN101485177B (zh) 2012-08-15

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